D300 Astrophotography?

Wow, no posts for two years, and now 2 posts in the same week !! Amazing what a new camera body can inspire...

I'm curious about ejmartin's clipped black level assertion, elsewhere in this same thread. I wonder if Capture NX was included in the USA D300 boxes. If not, you can use my copy (installed on my office system, in the cube adjacent to Greg Marshall) to check the coding levels for black and near-black.